Share your knowledge at the LQ Wiki.
Go Back > Forums > Linux Forums > Linux - Distributions > Ubuntu
User Name
Ubuntu This forum is for the discussion of Ubuntu Linux.


  Search this Thread
Old 09-27-2009, 01:25 PM   #1
Registered: Aug 2005
Location: Manchester, England
Distribution: Ubuntu 17.04
Posts: 303

Rep: Reputation: 25
The superblock could not be read fsck

I've got a problem where the system has detected that it did not shutdown cleanly last time and does a fsck check on startup, it gets to 70%, I think the end of phase 1, but doesn't go onto stage 2. Running fsck from a live CD gives:

ubuntu@ubuntu:~$ sudo fsck /media/disk
fsck 1.41.4 (27-Jan-2009)
e2fsck 1.41.4 (27-Jan-2009)
fsck.ext2: Is a directory while trying to open /media/disk

The superblock could not be read or does not describe a correct ext2
filesystem. If the device is valid and it really contains an ext2
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>

How can I unfsck the disk? It's a new disk but in a old (read at least 5 years old) system. Any HD that goes near it seems to develop the click of death and slowly die. Can anyone help?
Old 09-27-2009, 02:23 PM   #2
LQ Guru
Registered: Jan 2004
Location: NJ, USA
Distribution: Slackware, Debian
Posts: 5,852

Rep: Reputation: 357Reputation: 357Reputation: 357Reputation: 357
Do you get any I/O errors in the kernel messages? It the drive is clicking, then it is almost certainly bad, but it is strange that so many drives die in this box. Have you checked to see if it exceptionally hot in the drive bay?

Also, are you really using EXT2 on the drive? You might want to consider using a more robust filesystem in the future, though if you are experiencing hardware failure it probably won't help much in this case.
Old 09-28-2009, 02:54 PM   #3
Registered: Aug 2005
Location: Manchester, England
Distribution: Ubuntu 17.04
Posts: 303

Original Poster
Rep: Reputation: 25
it occasionally makes squeaky clicking noises and shortly after the system will become unresponsive and I'll have to reboot. I've checked and it's certainly not hot in the drive bay.

I've got the /home partition (which is what fsck is trying to scan) formatted wit EXT3 but if you have any suggestions for more robust filesystems I'd like to know!

Is there any way of preventing FSCK from running on boot?


fsck, superblock

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Read Only File System? Can't read superblock! haughjd Linux - Software 4 01-15-2008 08:27 AM
CDROM can't read/can't read superblock microomran Red Hat 1 07-05-2007 03:29 AM
fsck error (read from fs resulted in short read) NeoKaiserSigma Linux - General 0 04-05-2005 06:24 PM
Superblock could not be read captainfreedom Linux - Newbie 2 03-02-2005 02:09 PM
FSCK - superblock blackx Linux - Newbie 0 05-30-2003 10:23 AM > Forums > Linux Forums > Linux - Distributions > Ubuntu

All times are GMT -5. The time now is 11:23 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration